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Auteur Andriani Skopeliti |
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Affiner la recherche Interroger des sources externesMapping and the citizen sensor, ch 10. The relevance of protocols for VGI collection / Marco Minghini (2017)
Titre de série : Mapping and the citizen sensor, ch 10 Titre : The relevance of protocols for VGI collection Type de document : Chapitre/Contribution Auteurs : Marco Minghini, Auteur ; Vyron Antoniou, Auteur ; Cidália Costa Fonte, Auteur ; Jacinto Estima, Auteur ; Ana-Maria Olteanu-Raimond Editeur : Londres : Ubiquity press Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] acquisition de données
[Termes IGN] données localisées des bénévoles
[Termes IGN] protocole
[Termes IGN] qualité des donnéesRésumé : (auteur) Volunteered Geographic Information (VGI) has become a rich and well established source of geospatial data. From the popular OpenStreetMap (OSM) to many citizen science projects and social network platforms, the amount of geographically referenced information that is constantly being generated by citizens is burgeoning. The main issue that continues to hamper the full exploitation of VGI lies in its quality, which is by its nature typically undocumented and can range from very high quality to very poor. A crucial step towards improving VGI quality, which impacts on VGI usability, is the development and adoption of protocols, guidelines and best practices to assist users when collecting VGI. This chapter proposes a generic and flexible protocol for VGI data collection, which can be applied to new as well as to existing projects regardless of the specific type of geospatial information collected. The protocol is meant to balance the contrasting needs of providing VGI contributors with precise and detailed instructions while maintaining and growing the enthusiasm and motivation of contributors. Two real-world applications of the protocol are presented, which guide the collection of VGI in respectively the generation and updating of thematic information in a topographic building database; and the uploading of geotagged photographs for the improvement of land use and land cover maps. Technology is highlighted as a key factor in determining the success of the protocol implementation. Numéro de notice : H2017-020 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Chapître / contribution nature-HAL : ChOuvrScient DOI : 10.5334/bbf.j Date de publication en ligne : 11/09/2017 En ligne : https://doi.org/10.5334/bbf.j Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89340
Titre de série : Mapping and the citizen sensor, ch 13 Titre : VGI in national mapping agencies: experiences and recommendations Type de document : Chapitre/Contribution Auteurs : Ana-Maria Olteanu-Raimond Editeur : Londres : Ubiquity press Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] données localisées des bénévoles
[Termes IGN] organisme cartographique national
[Termes IGN] qualité des donnéesRésumé : (auteur) Despite the considerable growth in Volunteered Geographic Information (VGI) activities in citizen sensing and the evident opportunities for VGI use in map revision and updating, few European National Mapping Agencies (NMAs) or other types of government bodies have engaged significantly with VGI. Moreover, the level of engagement of NMAs with the VGI community varies greatly, and most of them have proposed their own tools for encouraging citizens and public partners to collect feedback or new data. There are numerous barriers limiting the participation of citizens and public partners in NMA data collection, including data quality issues, the motivation of the contributors and legal issues. The aim of this chapter is to give an overview of the experiences of some European NMAs in engaging with VGI. Guidelines and recommendations to support wider engagement with the VGI community are also proposed to help NMAs and interested government bodies exploit the potential of VGI for authoritative mapping. Numéro de notice : H2017-017 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Chapître / contribution nature-HAL : ChOuvrScient Date de publication en ligne : 11/09/2017 En ligne : https://doi.org/10.5334/bbf.m Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89337
Titre de série : Mapping and the citizen sensor, ch 4 Titre : Production of topographic maps with VGI: quality management and automation Type de document : Chapitre/Contribution Auteurs : Guillaume Touya Editeur : Londres : Ubiquity press Année de publication : 2017 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique web
[Termes IGN] base de données topographiques
[Termes IGN] carte topographique
[Termes IGN] cartographie collaborative
[Termes IGN] données localisées des bénévoles
[Termes IGN] niveau de détail
[Termes IGN] qualité des donnéesRésumé : (auteur) The most common way to use geographic information is to make maps. With the ever growing amount of Volunteered Geographic Information (VGI), we have the opportunity to make many maps, but only automatic cartography (generalisation, stylisation, text placement) can handle such an amount of data with very frequent updates. This chapter reviews the recent proposals to adapt the current techniques for automatic cartography to VGI as the source data, focusing on the production of topographic base maps. The review includes methods to assess quality and the level of detail, which is necessary to handle data heterogeneity. The paper also describes automatic techniques to generalise, harmonise and render VGI. Numéro de notice : H2017-018 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Chapître / contribution nature-HAL : ChOuvrScient DOI : 10.5334/bbf.d Date de publication en ligne : 11/09/2017 En ligne : https://doi.org/10.5334/bbf.d Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=89338 Towards a protocol for the collection of VGI vector data / Peter Mooney in ISPRS International journal of geo-information, vol 5 n° 11 (November 2016)
Titre : Towards a protocol for the collection of VGI vector data Type de document : Article/Communication Auteurs : Peter Mooney, Auteur ; Marco Minghini, Auteur ; Mari Laasko, Auteur ; Vyron Antoniou, Auteur ; Ana-Maria Olteanu-Raimond Année de publication : 2016 Projets : Mapping and the citizen sensor / Foody, Giles M. Article en page(s) : pp 1 - 23 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Bases de données localisées
[Termes IGN] données localisées des bénévoles
[Termes IGN] données vectorielles
[Termes IGN] intégration de données
[Termes IGN] lever des détails
[Termes IGN] production participative
[Termes IGN] spécification
[Termes IGN] vectorisationRésumé : (Auteur) A protocol for the collection of vector data in Volunteered Geographic Information (VGI) projects is proposed. VGI is a source of crowdsourced geographic data and information which is comparable, and in some cases better, than equivalent data from National Mapping Agencies (NMAs) and Commercial Surveying Companies (CSC). However, there are many differences in how NMAs and CSC collect, analyse, manage and distribute geographic information to that of VGI projects. NMAs and CSC make use of robust and standardised data collection protocols whilst VGI projects often provide guidelines rather than rigorous data collection specifications. The proposed protocol addresses formalising the collection and creation of vector data in VGI projects in three principal ways: by manual vectorisation; field survey; and reuse of existing data sources. This protocol is intended to be generic rather than being linked to any specific VGI project. We believe that this is the first protocol for VGI vector data collection that has been formally described in the literature. Consequently, this paper shall serve as a starting point for on-going development and refinement of the protocol. Numéro de notice : A2016--120 Affiliation des auteurs : LASTIG COGIT+Ext (2012-2019) Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3390/ijgi5110217 Date de publication en ligne : 17/11/2016 En ligne : http://dx.doi.org/10.3390/ijgi5110217 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84789
in ISPRS International journal of geo-information > vol 5 n° 11 (November 2016) . - pp 1 - 23[article]Documents numériques
en open access
A2016--120_.pdfAdobe Acrobat PDF
Titre : On the parametric description of the shape of the cartographic line Type de document : Article/Communication Auteurs : Andriani Skopeliti, Auteur ; Lysandros Tsoulos, Auteur Année de publication : 1999 Article en page(s) : pp 53 - 65 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie numérique
[Termes IGN] cartographieRésumé : (Auteur) The description of the nature and shape of the carto-graphic line has been a challenging research area in con-temporary cartography. The digital character of the line, while representing a tempting research element, reveals the extent of the problems related to line character as-sessment because of the practically unlimited number offorms the cartographic line can take. Recent research hasresulted in a number of parameters (measures) describ-ing the line shape qualitatively and quantitatively. Thispaper deals with the following two themes: (1) the quantitative description of line character through a number ofparameters; and (2) the development of a methodologyfor the segmentation of the cartographic line into "ho-mogeneous" parts. The identification, selection, and clus-tering of parameters, leading to the sufficient description of line character, is elaborated. The "knowledge" thus ac-quired is valuable for the objective description of line shape and constitutes the basis for addressing other prob-lems, such as the realistic estimation of positional error in data acquisition and the efficient generalization of linearfeatures. Numéro de notice : A1999-156 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.3138/J473-P3U0-197J-3602 En ligne : https://doi.org/10.3138/J473-P3U0-197J-3602 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26355
in Cartographica > vol 36 n° 3 (September 1999) . - pp 53 - 65[article]Exemplaires(1)
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